./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 17:31:27,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:31:27,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:31:27,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:31:27,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:31:27,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:31:27,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:31:27,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:31:27,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:31:27,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:31:27,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:31:27,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:31:27,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:31:27,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:31:27,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:31:27,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:31:27,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:31:27,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:31:27,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:31:27,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:31:27,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:31:27,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:31:27,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:31:27,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:31:27,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:31:27,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:31:27,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:31:27,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:31:27,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:31:27,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:31:27,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:31:27,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:31:27,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:31:27,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:31:27,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:31:27,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:31:27,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:31:27,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:31:27,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:31:27,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:31:27,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:31:27,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:31:27,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:31:27,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:31:27,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:31:27,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:31:27,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:31:27,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:31:27,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:31:27,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:31:27,732 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:31:27,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:31:27,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:31:27,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:31:27,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:31:27,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:31:27,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:31:27,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:31:27,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:31:27,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:31:27,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:31:27,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:31:27,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:31:27,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:31:27,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:31:27,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:31:27,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:31:27,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:31:27,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:31:27,737 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:31:27,737 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:31:27,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:31:27,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:31:27,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 [2021-12-21 17:31:27,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:31:27,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:31:27,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:31:27,976 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:31:27,977 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:31:27,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-12-21 17:31:28,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d0efb52a/91ea71f2a2ac4ca0881ef00bb6df54b9/FLAG0ec0b3990 [2021-12-21 17:31:28,819 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:31:28,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-12-21 17:31:28,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d0efb52a/91ea71f2a2ac4ca0881ef00bb6df54b9/FLAG0ec0b3990 [2021-12-21 17:31:29,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d0efb52a/91ea71f2a2ac4ca0881ef00bb6df54b9 [2021-12-21 17:31:29,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:31:29,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:31:29,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:31:29,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:31:29,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:31:29,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:31:29" (1/1) ... [2021-12-21 17:31:29,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b5b727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:29, skipping insertion in model container [2021-12-21 17:31:29,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:31:29" (1/1) ... [2021-12-21 17:31:29,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:31:29,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:31:31,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2021-12-21 17:31:31,724 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2021-12-21 17:31:31,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:31:31,795 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:31:32,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2021-12-21 17:31:32,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2021-12-21 17:31:32,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:31:32,334 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:31:32,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32 WrapperNode [2021-12-21 17:31:32,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:31:32,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:31:32,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:31:32,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:31:32,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (1/1) ... [2021-12-21 17:31:32,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (1/1) ... [2021-12-21 17:31:32,622 INFO L137 Inliner]: procedures = 547, calls = 2335, calls flagged for inlining = 258, calls inlined = 200, statements flattened = 4937 [2021-12-21 17:31:32,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:31:32,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:31:32,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:31:32,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:31:32,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (1/1) ... [2021-12-21 17:31:32,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (1/1) ... [2021-12-21 17:31:32,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (1/1) ... [2021-12-21 17:31:32,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (1/1) ... [2021-12-21 17:31:32,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (1/1) ... [2021-12-21 17:31:32,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (1/1) ... [2021-12-21 17:31:32,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (1/1) ... [2021-12-21 17:31:32,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:31:32,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:31:32,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:31:32,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:31:32,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (1/1) ... [2021-12-21 17:31:32,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:31:32,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:31:32,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 17:31:32,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 17:31:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2021-12-21 17:31:32,960 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2021-12-21 17:31:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:31:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:31:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-12-21 17:31:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-12-21 17:31:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-21 17:31:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-21 17:31:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:31:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:31:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2021-12-21 17:31:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2021-12-21 17:31:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2021-12-21 17:31:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2021-12-21 17:31:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-21 17:31:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-21 17:31:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2021-12-21 17:31:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2021-12-21 17:31:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-21 17:31:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-21 17:31:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2021-12-21 17:31:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2021-12-21 17:31:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2021-12-21 17:31:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2021-12-21 17:31:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2021-12-21 17:31:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2021-12-21 17:31:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-12-21 17:31:32,965 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-12-21 17:31:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2021-12-21 17:31:32,965 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2021-12-21 17:31:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 17:31:32,965 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 17:31:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2021-12-21 17:31:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2021-12-21 17:31:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2021-12-21 17:31:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2021-12-21 17:31:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:31:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:31:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-21 17:31:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-21 17:31:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:31:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:31:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2021-12-21 17:31:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2021-12-21 17:31:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:31:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-21 17:31:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-21 17:31:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-12-21 17:31:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-12-21 17:31:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2021-12-21 17:31:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2021-12-21 17:31:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:31:32,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:31:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:31:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2021-12-21 17:31:32,971 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2021-12-21 17:31:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-12-21 17:31:32,972 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-12-21 17:31:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-21 17:31:32,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-21 17:31:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-21 17:31:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-21 17:31:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:31:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:31:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:31:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2021-12-21 17:31:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2021-12-21 17:31:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:31:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:31:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:31:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 17:31:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 17:31:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-21 17:31:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-21 17:31:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2021-12-21 17:31:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2021-12-21 17:31:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:31:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:31:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2021-12-21 17:31:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2021-12-21 17:31:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-21 17:31:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-21 17:31:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2021-12-21 17:31:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2021-12-21 17:31:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2021-12-21 17:31:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2021-12-21 17:31:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_uninit [2021-12-21 17:31:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_uninit [2021-12-21 17:31:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-12-21 17:31:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-12-21 17:31:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:31:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:31:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:31:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:31:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:31:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-21 17:31:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-21 17:31:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-21 17:31:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-21 17:31:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-21 17:31:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-21 17:31:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-21 17:31:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-21 17:31:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2021-12-21 17:31:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2021-12-21 17:31:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-21 17:31:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-21 17:31:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:31:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:31:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:31:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:31:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-21 17:31:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-21 17:31:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 17:31:32,981 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 17:31:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2021-12-21 17:31:32,981 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2021-12-21 17:31:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:31:32,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:31:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-21 17:31:32,981 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-21 17:31:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:31:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:31:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:31:32,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:31:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2021-12-21 17:31:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2021-12-21 17:31:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-21 17:31:33,031 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-21 17:31:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2021-12-21 17:31:33,031 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2021-12-21 17:31:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-21 17:31:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-21 17:31:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-21 17:31:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-21 17:31:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-12-21 17:31:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-12-21 17:31:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-12-21 17:31:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-12-21 17:31:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 17:31:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 17:31:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:31:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:31:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-12-21 17:31:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-12-21 17:31:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2021-12-21 17:31:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2021-12-21 17:31:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-21 17:31:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-21 17:31:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:31:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2021-12-21 17:31:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2021-12-21 17:31:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2021-12-21 17:31:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2021-12-21 17:31:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2021-12-21 17:31:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2021-12-21 17:31:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2021-12-21 17:31:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2021-12-21 17:31:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:31:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-12-21 17:31:33,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-12-21 17:31:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2021-12-21 17:31:33,034 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2021-12-21 17:31:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-12-21 17:31:33,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-12-21 17:31:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:31:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-21 17:31:33,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-21 17:31:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2021-12-21 17:31:33,034 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2021-12-21 17:31:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2021-12-21 17:31:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2021-12-21 17:31:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:31:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:31:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:31:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:31:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-21 17:31:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-21 17:31:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2021-12-21 17:31:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2021-12-21 17:31:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-21 17:31:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-21 17:31:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2021-12-21 17:31:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2021-12-21 17:31:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2021-12-21 17:31:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2021-12-21 17:31:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-12-21 17:31:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-12-21 17:31:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-12-21 17:31:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-12-21 17:31:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 17:31:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 17:31:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:31:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:31:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-12-21 17:31:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-12-21 17:31:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2021-12-21 17:31:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2021-12-21 17:31:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 17:31:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 17:31:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 17:31:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 17:31:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2021-12-21 17:31:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2021-12-21 17:31:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:31:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-21 17:31:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-21 17:31:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:31:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:31:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2021-12-21 17:31:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2021-12-21 17:31:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-21 17:31:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-21 17:31:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2021-12-21 17:31:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2021-12-21 17:31:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2021-12-21 17:31:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2021-12-21 17:31:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-21 17:31:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-21 17:31:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-12-21 17:31:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-12-21 17:31:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2021-12-21 17:31:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2021-12-21 17:31:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2021-12-21 17:31:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2021-12-21 17:31:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-21 17:31:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-21 17:31:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-21 17:31:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-21 17:31:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:31:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:31:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2021-12-21 17:31:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2021-12-21 17:31:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2021-12-21 17:31:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2021-12-21 17:31:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:31:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:31:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:31:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-21 17:31:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-21 17:31:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-21 17:31:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-21 17:31:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2021-12-21 17:31:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2021-12-21 17:31:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2021-12-21 17:31:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2021-12-21 17:31:33,838 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:31:33,841 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:31:34,023 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:31:40,346 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:31:40,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:31:40,362 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 17:31:40,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:31:40 BoogieIcfgContainer [2021-12-21 17:31:40,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:31:40,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:31:40,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:31:40,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:31:40,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:31:29" (1/3) ... [2021-12-21 17:31:40,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7646cfb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:31:40, skipping insertion in model container [2021-12-21 17:31:40,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:31:32" (2/3) ... [2021-12-21 17:31:40,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7646cfb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:31:40, skipping insertion in model container [2021-12-21 17:31:40,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:31:40" (3/3) ... [2021-12-21 17:31:40,374 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-12-21 17:31:40,378 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:31:40,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 17:31:40,429 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:31:40,435 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 17:31:40,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 17:31:40,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 1683 states, 1140 states have (on average 1.2526315789473683) internal successors, (1428), 1179 states have internal predecessors, (1428), 427 states have call successors, (427), 115 states have call predecessors, (427), 114 states have return successors, (423), 420 states have call predecessors, (423), 423 states have call successors, (423) [2021-12-21 17:31:40,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-21 17:31:40,519 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:31:40,520 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:31:40,520 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:31:40,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:31:40,525 INFO L85 PathProgramCache]: Analyzing trace with hash 51079051, now seen corresponding path program 1 times [2021-12-21 17:31:40,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:31:40,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042799505] [2021-12-21 17:31:40,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:31:40,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:31:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:31:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 17:31:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 17:31:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-21 17:31:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:31:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:31:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:31:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 17:31:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 17:31:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:31:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:31:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 17:31:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 17:31:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:31:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:31:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 17:31:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 17:31:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:31:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:31:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 17:31:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 17:31:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-21 17:31:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:31:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 17:31:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 17:31:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:31:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 17:31:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-21 17:31:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-21 17:31:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 17:31:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-12-21 17:31:41,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:31:41,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042799505] [2021-12-21 17:31:41,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042799505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:31:41,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:31:41,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:31:41,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015748160] [2021-12-21 17:31:41,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:31:41,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:31:41,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:31:41,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:31:41,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:31:41,705 INFO L87 Difference]: Start difference. First operand has 1683 states, 1140 states have (on average 1.2526315789473683) internal successors, (1428), 1179 states have internal predecessors, (1428), 427 states have call successors, (427), 115 states have call predecessors, (427), 114 states have return successors, (423), 420 states have call predecessors, (423), 423 states have call successors, (423) Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-21 17:31:44,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:31:46,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:31:49,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:31:52,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:31:54,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:31:55,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:31:55,976 INFO L93 Difference]: Finished difference Result 3418 states and 4673 transitions. [2021-12-21 17:31:55,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:31:55,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 227 [2021-12-21 17:31:55,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:31:56,004 INFO L225 Difference]: With dead ends: 3418 [2021-12-21 17:31:56,004 INFO L226 Difference]: Without dead ends: 1724 [2021-12-21 17:31:56,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-21 17:31:56,023 INFO L933 BasicCegarLoop]: 2078 mSDtfsCounter, 1193 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 1167 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 5193 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1167 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-12-21 17:31:56,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 5193 Invalid, 2872 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1167 Valid, 1700 Invalid, 5 Unknown, 0 Unchecked, 13.9s Time] [2021-12-21 17:31:56,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2021-12-21 17:31:56,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1642. [2021-12-21 17:31:56,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1124 states have (on average 1.23932384341637) internal successors, (1393), 1159 states have internal predecessors, (1393), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2021-12-21 17:31:56,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2201 transitions. [2021-12-21 17:31:56,187 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2201 transitions. Word has length 227 [2021-12-21 17:31:56,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:31:56,190 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 2201 transitions. [2021-12-21 17:31:56,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-21 17:31:56,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2201 transitions. [2021-12-21 17:31:56,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-21 17:31:56,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:31:56,207 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:31:56,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:31:56,208 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:31:56,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:31:56,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1148756917, now seen corresponding path program 1 times [2021-12-21 17:31:56,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:31:56,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102952185] [2021-12-21 17:31:56,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:31:56,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:31:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:31:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 17:31:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 17:31:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-21 17:31:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:31:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:31:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:31:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 17:31:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 17:31:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:31:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:31:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 17:31:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 17:31:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:31:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:31:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 17:31:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 17:31:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:31:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-21 17:31:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 17:31:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 17:31:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:31:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-21 17:31:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:31:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 17:31:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-21 17:31:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-21 17:31:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:31:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-12-21 17:31:56,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:31:56,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102952185] [2021-12-21 17:31:56,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102952185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:31:56,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:31:56,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:31:56,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144955175] [2021-12-21 17:31:56,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:31:56,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:31:56,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:31:56,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:31:56,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:31:56,792 INFO L87 Difference]: Start difference. First operand 1642 states and 2201 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-21 17:31:59,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:32:02,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:32:04,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:32:06,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:32:06,637 INFO L93 Difference]: Finished difference Result 2129 states and 2855 transitions. [2021-12-21 17:32:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:32:06,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 201 [2021-12-21 17:32:06,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:32:06,653 INFO L225 Difference]: With dead ends: 2129 [2021-12-21 17:32:06,653 INFO L226 Difference]: Without dead ends: 1722 [2021-12-21 17:32:06,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-21 17:32:06,659 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 1192 mSDsluCounter, 3035 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 1091 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 5069 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:32:06,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 5069 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 1655 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2021-12-21 17:32:06,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-21 17:32:06,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1642. [2021-12-21 17:32:06,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1124 states have (on average 1.2384341637010676) internal successors, (1392), 1159 states have internal predecessors, (1392), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2021-12-21 17:32:06,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2200 transitions. [2021-12-21 17:32:06,738 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2200 transitions. Word has length 201 [2021-12-21 17:32:06,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:32:06,740 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 2200 transitions. [2021-12-21 17:32:06,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-21 17:32:06,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2200 transitions. [2021-12-21 17:32:06,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-21 17:32:06,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:32:06,746 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:32:06,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:32:06,746 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:32:06,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:32:06,747 INFO L85 PathProgramCache]: Analyzing trace with hash 24013449, now seen corresponding path program 1 times [2021-12-21 17:32:06,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:32:06,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541107070] [2021-12-21 17:32:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:32:06,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:32:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:06,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:32:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:06,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:06,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 17:32:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 17:32:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-21 17:32:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:32:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:32:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:32:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 17:32:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 17:32:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:32:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:32:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 17:32:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 17:32:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:32:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:32:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 17:32:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 17:32:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:32:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:32:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 17:32:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 17:32:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-21 17:32:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:32:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 17:32:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 17:32:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:32:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 17:32:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-21 17:32:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-21 17:32:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 17:32:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:07,338 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-12-21 17:32:07,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:32:07,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541107070] [2021-12-21 17:32:07,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541107070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:32:07,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:32:07,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:32:07,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939113144] [2021-12-21 17:32:07,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:32:07,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:32:07,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:32:07,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:32:07,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:32:07,344 INFO L87 Difference]: Start difference. First operand 1642 states and 2200 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-21 17:32:09,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:32:13,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:32:15,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:32:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:32:17,046 INFO L93 Difference]: Finished difference Result 2129 states and 2853 transitions. [2021-12-21 17:32:17,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:32:17,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 227 [2021-12-21 17:32:17,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:32:17,060 INFO L225 Difference]: With dead ends: 2129 [2021-12-21 17:32:17,060 INFO L226 Difference]: Without dead ends: 1722 [2021-12-21 17:32:17,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-21 17:32:17,067 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 1191 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 1090 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 5066 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1090 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-12-21 17:32:17,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1262 Valid, 5066 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1090 Valid, 1656 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2021-12-21 17:32:17,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-21 17:32:17,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1642. [2021-12-21 17:32:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1124 states have (on average 1.2375444839857652) internal successors, (1391), 1159 states have internal predecessors, (1391), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2021-12-21 17:32:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2199 transitions. [2021-12-21 17:32:17,133 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2199 transitions. Word has length 227 [2021-12-21 17:32:17,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:32:17,135 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 2199 transitions. [2021-12-21 17:32:17,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-21 17:32:17,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2199 transitions. [2021-12-21 17:32:17,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-21 17:32:17,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:32:17,140 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:32:17,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:32:17,141 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 17:32:17,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:32:17,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1192140277, now seen corresponding path program 1 times [2021-12-21 17:32:17,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:32:17,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978698007] [2021-12-21 17:32:17,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:32:17,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:32:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:32:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 17:32:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 17:32:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-21 17:32:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 17:32:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:32:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:32:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 17:32:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 17:32:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:32:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:32:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 17:32:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 17:32:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:32:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:32:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 17:32:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 17:32:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:32:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:32:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 17:32:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 17:32:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-21 17:32:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:32:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 17:32:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 17:32:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 17:32:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 17:32:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:32:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-21 17:32:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-21 17:32:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 17:32:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:32:17,742 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-12-21 17:32:17,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:32:17,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978698007] [2021-12-21 17:32:17,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978698007] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:32:17,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:32:17,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 17:32:17,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706052652] [2021-12-21 17:32:17,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:32:17,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 17:32:17,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:32:17,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 17:32:17,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-21 17:32:17,745 INFO L87 Difference]: Start difference. First operand 1642 states and 2199 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-21 17:32:20,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:32:22,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:32:24,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 17:32:26,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []